<!DOCTYPE html>
<!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!-->
<html class="no-js">
<!--<![endif]-->

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title></title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../style.css">
</head>

<body>
    <!--[if lt IE 7]>
            <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
        <![endif]-->

    <div id="app">
        <p> 点击按钮次数: {{ counter }} </p>
        <my-component @click.native="handleClick"></my-component>
    </div>

    <script src='https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js'></script>
    <script src="" async defer></script>

    <script>
        Vue.component('my-component', {
            template: '<div class="component"><button> clickme! </button> </div>'
        })

        var app = new Vue({
            el: '#app',
            data: {
                counter: 0
            },
            methods: {
                handleClick: function () {
                    this.counter++
                }
            }
        })
    </script>

</body>

</html>